Collapsible container



March 5, 1946. P. 'ZALKIND 6 CODLAPSI'BLE CONTAINER H Original Filed Feb. 21; 1959 4' 1N-\:/ENTOR. .v Shilip ga end 313. Z I BY M ATTORNEYS.

Patented Mar. 5, 1946 l was esubstitutcd'ifor iabandoned' applicatian ?Serial' No.

257,697, February 21, 1939.-

This application February 19,..1344, Serial-1N0. 523:0.08

1 Claim.

.This..application is a substitute forap-plication :Serial No. 257,697, filedFeb. 21,1939.

fMy invention relates to .doors for=containers vand more particularly relates to collapsible cabi- ;nets, chests, and arts therefor.

Numerous attempts, have .beenmade to develop collapsiblecabinets.made of sheet and/.or fibrous .material such as plaster board, panel board, corrugated :boar'd; container board, fiber boar'd,.etc., Jwhichcan beused'forstorag'eof clothing and the like.

Many of. such devices have been proven by scientific tests imperfect and 'inefiicient :for their statedpurposes, .such .as a moth proof cabinet,

for'which purpose hermetic tightness is required. Accordingly anobject of' inyginventionisthe provision o-fa door for a collapsible cabinet,.said

door may be wedged'closed 'inithe cabinet openmg- There'are numerous other objects of this invention which will appear in the course of the following detailed description and drawing in which:

Figure l is a plan view of a developed blank comprising rear and side walls and corner members for forming a cabinet of the type illustrated in Figure 2. I

Figure 2 is a view in perspective of one form of cabinet showing the arrangement of the hinges and door at the front thereof.

Figure 3 is a horizontal section in perspective taken on the line 3-3 of Figure 2.

' Figure 4 is a view in perspective of one form. of corner of a cabinet showing a modified box structure.

Figure 5 is a cross-sectional view on line 5-5 of Figure 2 showing the door partly open and illustrating the wedging action of the door in the cabinet opening.

Referring to Figure 1, I have shown a blank in developed form employed in carrying out my invention. As shown, the blank comprises three main sections 2, 3 and 4 with suitable score lines as at 9, 9', l and I0 for defining the sections.

When the blank is turned on the score lines 9' and Hi, the sections 2 and 4 form the side wall of my cabinet and section 3 the rear wall;

Extending from section 4, I have provided a flap comprising units l3, l4, land l6 suitably separated by the score lines l2 and having longitudinal slots 8 therein for purposes to be described hereinafter. A similar flap consisting of units l1, l8, l9 and extending from section 2, and

separated by scoredine i.l.l,'rare-;also :prov' ed with longitudinal sslotscsuch (as 11 Thersections 13,: I=.4,r;l?5 :and l..6,'whemturned:cn :their score 1 lines, .sform vertical rposts .for $5111)- aporting. the top; and: :bottom ;member ofthee-cabinet. In forming this post, section [3 isefirst :turnedzatzright-.:azngles to 'section' l'joni thevscore .line l 0, br'inging; it ,:paralle1 to the back wall 1:3 whenthecabinetisset'up foruse. Section l is then-turned onrthe-nextrscore line. [2. .until Eitris uati-rightrangles to? the-section l3 and parallelwith .section 4 but-spaced therefromv adistancaequalto the width of section. l3. .Section l5. isithentumed ---0n :its scoreuline untili-it'is at right angles to :as the -'width of sections 113' and I 5 v is .equaL-the section il 4 and parallel-to. section 13. i-Inas-much sedge. of section lfa willcome in contact with the "'door'having tubularpsidereinforcements, the relinforcementshaving sloping surfaces so that the =-section-4. Section [6.15 turnedimon itsscore dine-until it is at rightiangles to section! 5, forming'a reentrant or. closedpo-st formationealthcugh .it will be understood-that, if: desired, section-t6 emay tbeeturned. outwardly rather. than inwardly.

The unit or section 16 may be secured to the section 4 by any suitable means as by glueing the face-to-face portions of sections [6 and 4, or by means of staples 2| or other fastening means such as the member 2|. One side of member 2|, which may be a clip, cleat, brace, etc., is first connected to the edge of section "3 and when the post is formed, the other. side of the member 2| is secured to wall 4, Alternatively,

member 2| may be replaced bya strip of tape or other suitable material such as a strip of wood or metal adhesively secured to the face-to-face portions of both walls. This member may be coterminous with the post or may extend for short lengths.

A similar post formation is made with the sections l1, l8, l9 and 20 to form the posts shown inFigure 3. V 7

Although the corners of the blank at the posts in Figure 1 are showncut away on four sides to form a lowered seat, it will be clear that the posts may extend to the top of the cabinet walls, or one or more sides of the posts may extend to the tb'p, as shown at 2H5, Figure 4.

The top and bottom .portions of the cabinet may comprise sunken end members as shown in Figvisible in Figures 2 and 3. These posts are secured by adhesive substance or other suitable means, as by rivets. The surface of the edge opposite the hinged edge may be sloped inwardly as shown in the cross-sectional view of Figure 5 to produce a width of door on the inside slightly narrower than the door opening and on the outside, slightly wider than the door opening producing a. wedge construction. As a result, when the door is closed, it is held closed by the wedge construction. At one side of the door blank, a series of slots are cut in the material at either side of a score line, as may be best suited for any specific formation.

Hinge parts H6, H1 and H8 (Figure 2) are introduced into these slots and secured by means of prongs as hereinafter described, or by other fastening methods. Corresponding hinge parts I20, HI and I22 are secured in slots I and 8 as illustrated in Figure 1 for cooperating with the first mentioned hinge parts.

My hinge resides in simple metal stampings secured to the wall and door and interlocking to form a hinge and its own pivot, with means struck up in the parts themselves for attaching the hinge.

One illustration of the principle is found in Figure 3. A metal stamping punched to desired shape is formed into a U shape having sides I26 and I 21 and eyelets or punched out openings I28. This forms one half of the hinge. A similar metal stamping comprises corresponding sides I29 and I30 with eyelets I3I.

The section having sides I26 and I21 is secured around the edge of the door at its hinge pivot. These as shown are secured to the walls by prongs 28 stamped from the parts at either one or both sides of the openings and engaging the walls. Similarly, other sections having sides I29 and I30 are secured to the wall around the edge adjacent its pivot. These are so secured that the metal portion I26 curved into a U, lies within the eyelet. I28 and the metal U shaped portions I29 lie within the eyelets I3I. The U shaped metal portion, extending from diametrically opposite directions, forms a bearing or hinge openings I32 into which a pin is inserted. Such a hinge construction could be especially adapted for the cabinet construction shown in Figure 2, where the thick walls anchor the U member and the doors are to be shipped detached from the body portion of the cabinet.

While I have described my novel doors and hinges in connection with a collapsible cabinet, it is obvious that they will be useful for other purposes as well, and accordingly, I prefer to be limited, not by the specific disclosures, but only by the appended claim.

I claim:

A cabinet having an open front side and comprising a bottom, top, and side walls, said walls being made of sheet material having fold lines along which the same is folded to form said walls; a tubular reinforcement at an edge of said open front side, said tubular reinforcement having one surface substantially perpendicular to said open front side; and a door to close said open front side, said door being pivoted to the cabinet at the edge of the open front side opposite to said tubular reinforcement and having a tubular reinforcement along the edge thereof opposite the pivoted edge, said last mentioned reinforcement having one surface sloped inwardly slightly off from perpendicular to said front side and forming an angle with the said one surface of said tubular reinforcement when said door is closed, the opening of said angle being directed toward the interior of said cabinet, said sloped surface cooperating with the inner front corner of said first mentioned reinforcement to form a wedge closure when said door is brought into closed position.

PHILIP ZALKIND. 

